thanks Jill58 - that's what I thought too but I had my husband shake out his cotton tees just in case and a couple flew out . So into the washer go his extensive tee shirt collection. Oh my is this a lot of work!!!

Sorry to have only just seen this post- I'm new here!
without having read all the comments I absolutely second the summary given by Diana.
Not sure if anyone else recommended the use of oil of cloves - used in very diluted form - to wipe out drawers wardrobes etc.